The 3He + 4He --> 7Be Astrophysical S-factor

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dc.creatorBrown, T. A. D.
dc.creatorBordeanu, C.
dc.creatorSnover, K. A.
dc.creatorStorm, D. W.
dc.creatorMelconian, D.
dc.creatorSallaska, A. L.
dc.creatorSjue, S. K. L.
dc.creatorTriambak, S.
dc.date2007-10-05
dc.date2007-11-05
dc.date.accessioned2026-07-07T10:57:36Z
dc.date.available2026-07-07T10:57:36Z
dc.descriptionWe present precision measurements of the 3He + 4He --> 7Be reaction in the range ECM = 0.33 to 1.23 MeV using a small gas cell and detection of both prompt gamma rays and 7Be activity. Our prompt and activity measurements are in good agreement within an experimental uncertainty of several percent. We find S(0) = 0.595 +/- 0.018 keV b from fits of the Kajino theory to our data. We compare our results with published measurements, and we discuss the consequences for Big Bang Nucleosynthesis and for solar neutrino flux calculations.
dc.descriptionFinal version of paper published in Phys. Rev. C (see below). This is a modified version of the paper that was initially posted on October 5, 2007. S-prompt values and uncertainties were corrected for small mistakes. Resulting change in combined zero-energy S-factor was only approx. 1 unit in 600 (less than 10 % of quoted error)
dc.identifierhttps://arxiv.org/abs/0710.1279
dc.identifierhttp://arxiv.org/abs/0710.1279
dc.identifierPhys.Rev.C76:055801,2007
dc.identifierdoi:10.1103/PhysRevC.76.055801
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/186810
dc.subjectNuclear Experiment
dc.subjectAstrophysics
dc.titleThe 3He + 4He --> 7Be Astrophysical S-factor
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